Magneto contact



' Jan. 1 5, 1924.

' 1,480,696 P.' A. SCHAEFER l.

MAGNET@ CONTACT Filed March IL.v 192g f Y(ML Raue/laffe@ Patented Jan.15, 1924.

UNITED ASTATES PETER A. SCHAEFER, OF GREENSBURG, PENNSYLVANIA.

MAGNETO CONTACT.

Application led March 1, 1922.

To LZZ whom it may concern.'

Be it known that I, PETER A. SCHAEFER, citizen of the United States,residing at Greensburg, in the county of llVestmoreland and State ofPennsylvania, have invented certain new and useful Improvements inMagneto Contacts, of which the following is a specification.

This invention relates to an improved magneto contact for Ford motorcars and seeks, as one of its principal objects, to provide a contactwhich may be easily and quickly removed or replaced so that the contactmay, at any time, be conveniently cleaned.

The invention has as a further object to provide a contact embodying agasket for )Lneventing the loss of oil through the plug opening in thetransmission cover of the vehicle and wherein the gasket will beyieldably fed to a position sealing the opening.

And the invention has as a still further object to provide a contactwhich may be readily substituted for the usual magneto contact of a Fordcar without the necessity for any structural change in the car.

Other and incidental objects will appear hereinafter.

In the drawing:

Figure 1 is a fragmentary sectional view showing my improved contact inconnection with the transmission cover and coil ring of a Ford car, theContact being shown in elevation.

Figure 2 is an enlarged vertical sectional view through the contact.

Figure S is a transverse sectional view on the line 3-3 of Figure 2,looking in the direction of the arrows, and

Figure l is a fragmentary sectional view on the line 4% of Figure 3,looking in the direction of the arrows.

As is well known, the magneto of a Ford car as now constructed isassociated with the engine iywheel. A stationary ring of coils isemployed and mounted upon the iiywheel4 of the engine to revolve withinsaid ring is a series of magnets. Current is thus generated in the coilsand screwed upon the transmission cover of the engine is a magnetocontact to coact with a terminal upon the coil ring. The magneto contactvery often becomes fouled while pieces of lint Serial No. 540,262.

and other foreign matter collect between the contact and the terminal ofthe coil ring. It accordingly becomes necessary to remove the magnetocontact from time to time and since, as previously noted, the contact isscrewed to the transmission cover, removal of the contact is tedious andinvconvenient. The present invention, therefore, seeks to provide acontacteliminating these disadvantagcous features. In the drawing, Ihave, for convenience, shown my improved contact in connection with aconventional transmission cover 1() of a Ford car. The usual stationaryring of coils of the magneto of the ear is indicated at 11 and between apair of the coils of said ring is mounted a terminal 12. Formed throughthe cover 10 above said terminal is an opening 13 to accommodate thecustomary magneto contact supplanted by the present invention.

In carrying the invention into effect, I employ a cylindrical bushing 14which is formed to snugly fit through the opening 13 of the transmissioncover and is provided at its upper end with a iange 15 overhanging thecover for supporting the bushing in position. Surrounding said flange islan appropriate gasket 16 and resting upon said gasket is a base ring17. This ring may be of aluminum or other approved material and isformed to register with the opening 13 in the transmission cover 10overlying the flange 15 of said bushing. The ring is stepped and.provided with a plurality of bosses 18 through which are formed suitable openings to accomn'iodate screws 19 threaded into the usualopenings in the cover for iirmly connecting the ring therewith, the ringserving to clamp the bushing 111 therebeneath. Formed in the ring, asbest shown in Figures 3 and 11, is a plurality of spaced arcuate slots2O opening through the upper face of the ring, while at their innerends, these slots are provided with pockets 21. Freely fitting throughthe ring is a preferably aluminum shell 22, reduced at` its lower endportion to loosely tit in the bushing 14, and provided with a beveledlower end edge 23. Projecting radially from the shell at suitably spacedpoints thereabout are lugs 24 engaged in the slots 20 for securing theshell upon the base ring and snugly, but slidably, fitting throughtherethrough, a tubular insulator slidably upon the shell forcompressing the gasket fitting through the she-l1 and provided atbetween said shoulder and the shell and feedits lower end with ashoulder, a gasket ining the gasket to the wall of said opening l0tei-posed between said shell and the shoulder, forming a joint therewithyieldably closed 5 and an electrical conductor extending within by saidspring.

the. insulator and including a spring tend- In testimon whereof I alix1n signature. :ug when vcompressed to shift the insulator PETE A.SCHAEFElg. [Ls]

